DGCA Air Navigation: Chart Theory & Projections Questions
136 exam-style Chart Theory & Projections questions for the DGCA Air Navigationpaper (CPL & ATPL). The first 12 are free below with answers and explanations — sign up free to practise all of them with progress tracking.
- Q1
A negative (westerly) magnetic variation signifies that?
- ATrue North is East of Magnetic North.
- BTrue North is West of Magnetic North.
- CMagnetic North is West of Compass North.
- DMagnetic North is East of Compass North.
Show answer
Correct answer: A. True North is East of Magnetic North.
This Explanation is Coming Soon
- Q2
The nominal scale f a Lambert conformal conic chart is the?
- AScale at the standard parallels.
- BScale at the Equator.
- CScale at the midway point between the two standard parallels.
- DEverywhere on the chart.
Show answer
Correct answer: A. Scale at the standard parallels.
This Explanation is Coming Soon
- Q3
A positive (easterly) magnetic variation signifies that?
- ATrue North is East of Magnetic North.
- BTrue North is West of Magnetic North.
- CMagnetic North is West of Compass North.
- DMagnetic North is East of Compass North.
Show answer
Correct answer: B. True North is West of Magnetic North.
This Explanation is Coming Soon
- Q4
The chart that is generally used for navigation in polar areas is based on a?
- ALambert's Conformal.
- BTransverse Mercator.
- CStereographical projection.
- DDirect Mercator.
Show answer
Correct answer: C. Stereographical projection.
This Explanation is Coming Soon
- Q5
On a Lambert conformal conic chart the convergence of the meridians is?
- AThe same as earth convergency at the parallel of origin.
- BThe same as the scale.
- CMost accurate at the standard parallets.
- DLeast accurate at the parallel of origin.
Show answer
Correct answer: A. The same as earth convergency at the parallel of origin.
This Explanation is Coming Soon
- Q6
On a Direct Mercator chart, a rhumb line appears as a?
- ACurve concave to the nearest poles.
- BCurve conjvex to the nearest pole.
- CStraight line.
- DCurve convex to the equator.
Show answer
Correct answer: C. Straight line.
This Explanation is Coming Soon
- Q7
On a Lambert conformal conic projection, with two standard parallels the scale is?
- ACorrect only along the parallel of origin.
- BCorrect only at the poles.
- CCorrect only along the standard parallels.
- DCorrect at all points on the chart.
Show answer
Correct answer: C. Correct only along the standard parallels.
This Explanation is Coming Soon
- Q8
On a Lambert conformal conic chart, with two standard parallels, the quoted scale is correct?
- AMidway between the two standard parallels.
- BOnly along the two standard parallels.
- COnly at the parallel of origin.
- DOnly at the centre of the chart.
Show answer
Correct answer: B. Only along the two standard parallels.
This Explanation is Coming Soon
- Q9
On a Direct Mercator chart a great circle will be represented by a ?
- AStraight lines.
- BCurves convex to the equator.
- CCurve convave to the equator.
- DCurves concave to the nearest pole.
Show answer
Correct answer: C. Curve convave to the equator.
This Explanation is Coming Soon
- Q10
On a Lambert Conformal Conic chart earth convergency is most accurately represented at the?
- AStandard parallels.
- BOutside the standard parallels.
- CAt all points between the standard parallels.
- DParallel of origin.
Show answer
Correct answer: D. Parallel of origin.
This Explanation is Coming Soon
- Q11
On a Transverse Mercator chart, scale is exactly correct along the?
- AMeridial of tangency.
- BPrime meridian.
- CStandard latitudes.
- Dlatitude of origin.
Show answer
Correct answer: A. Meridial of tangency.
This Explanation is Coming Soon
- Q12
The angular difference, on a Lambert conformal conic chart, between the arrival and departure track is equal to ?
- ADeparture angle.
- BMap convergence.
- CSecant of ½ latitude.
- DSecant of longitude.
Show answer
Correct answer: B. Map convergence.
This Explanation is Coming Soon
124 more Chart Theory & Projections questions in the full bank
Create a free account to practise every Chart Theory & Projections question with instant scoring, chapter tests, previous DGCA papers and full-length mock exams.
Start practising free